CN215916686U - Bearing box internal oil-water separation device of steam turbine set - Google Patents

Abstract

The utility model provides an oil-water separation device in a bearing box of a steam turbine unit, which comprises a separation box and a filter box, wherein one end of the filter box is provided with a liquid inlet pipe, a control valve is arranged on the liquid inlet pipe, a filter screen is arranged in the filter box, the liquid inlet pipe is positioned at the upper end of the filter screen, the center of the bottom of the separation box is provided with a driving motor, the output end of the driving motor is provided with a driving shaft, the driving shaft penetrates into the separation box, the driving shaft is provided with two polymerization blades and two stirring blades, one side of the separation box is provided with an oil discharge pipe, the other side of the separation box is provided with a water discharge pipe, and the oil discharge pipe and the water discharge pipe are respectively provided with a first electric control valve and a second electric control valve, the oil-water mixture rotating at high speed generates different centrifugal forces, so that oil and water are separated.

Description

Bearing box internal oil-water separation device of steam turbine set

Technical Field

The utility model relates to the technical field of steam turbines, in particular to an oil-water separation device in a bearing box of a steam turbine unit.

Background

The steam turbine is also called as a steam turbine engine, and is a rotary steam power device.A high-temperature high-pressure steam passes through a fixed nozzle to become an accelerated airflow and then is sprayed onto blades, so that a rotor provided with blade rows rotates, and simultaneously, the rotor does work outwards. The steam turbine is the main equipment of modern thermal power plant, also is used in metallurgical industry, chemical industry, naval vessel power device, and the steam turbine is the most widely used prime mover in modern thermal power plant. The steam turbine has the advantages of large single machine power, high efficiency, long service life and the like;

in the prior art, oil inside a steam turbine is often mixed with water, a traditional oil-water separator generally adopts gravity separation, because of different relative densities of oil, gas and water, oil-water mixtures with certain components form a certain proportion of oil-water layers under certain pressure and temperature when a system is balanced, gravity settling separation equipment is designed according to the basic principle, but the separation in the mode can cause poor processing of the oil-water mixtures and the water layers, and partial liquid is mixed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an oil-water separation device in a bearing box of a steam turbine unit, so as to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme:

the bearing box internal oil-water separation device of the steam turbine set comprises a separation box and a filter box, wherein the separation box is arranged at the lower end of the filter box, an opening is arranged in the middle of a joint, a liquid inlet pipe is arranged at one end of the filter box, a control valve is arranged on the liquid inlet pipe, a filter screen is arranged in the filter box, the liquid inlet pipe is positioned at the upper end of the filter screen, a driving motor is arranged at the center of the bottom of the separation box, a driving shaft is arranged at the output end of the driving motor and penetrates into the separation box, two polymerization blades which are symmetrically arranged and two stirring blades which are symmetrically arranged are arranged on the driving shaft, the two stirring blades are positioned above the two polymerization blades, an oil discharge pipe is arranged at one side of the separation box, a water discharge pipe is arranged at the other side of the separation box, and one end of the inner side of the oil discharge pipe is inserted between the stirring blades and the polymerization blades, the drain pipe is located the side lower extreme of separator box, just install first automatically controlled valve and second automatically controlled valve on oil drain pipe and the drain pipe respectively, the control unit is installed to one side of separator box, first automatically controlled valve and second automatically controlled valve all realize the electricity with the control unit and are connected.

Further, the filter tube is installed in the upper end slant of rose box, the rotating electrical machines is installed to the upper end of filter tube, the output of rotating electrical machines is connected with the rotation axis, install helical blade on the rotation axis, the lower extreme of filter tube is connected with the siphunculus.

Further, the lower extreme of siphunculus is connected with the filter cartridge, filter cartridge is inside to be provided with and to separate the net, the lower extreme of filter cartridge is provided with the calandria.

Further, a rotary closing plate is installed on the outer side of the filter box.

Further, the diameter of the drain pipe is smaller than that of the oil drain pipe.

Furthermore, a water level detector is arranged inside the separation box and electrically connected with the control unit.

Furthermore, a fixing frame is installed at the center of the upper end in the separation box, and the upper end of the driving shaft is rotatably connected with the fixing frame.

Compared with the prior art, the utility model has the beneficial effects that:

this device is according to the separator of centrifugal separation method design, can more effectively separate oil and water, at first pour into the rose box with profit from feed liquor pipe department, the solid impurity in the profit can be got rid of through the filter screen in the rose box, later the profit gets into to the rose box in, when having a large amount of profit in the rose box, start driving motor and make epaxial stirring blade of drive and polymerization blade rotate, utilize the difference of profit density, make high-speed rotatory profit mixture produce different centrifugal force, thereby make oil and moisture open. Because driving motor can reach very high rotational speed, produces the centrifugal force that reaches several hundred times acceleration of gravity, therefore this equipment can be more thoroughly with water oil separation, increases the separation effect, through the switching frequency and the time in controlling first automatically controlled valve and the second automatically controlled valve at last to control inside water oil separating's balance.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a cross-sectional view of the filter box structure of the present invention;

FIG. 3 is a sectional view of the separator tank structure of the present invention;

FIG. 4 is an enlarged view of area A of FIG. 3;

in the figure: 1. a separation tank; 2. a filter box; 3. a control valve; 4. a rotating electric machine; 5. a filter screen; 6. a first electrically controlled valve; 7. a control unit; 8. a second electrically controlled valve; 9. a drive motor; 10. a water level detector; 11. an oil discharge pipe; 12. a drain pipe; 13. a fixed mount; 21. a liquid inlet pipe; 22. a filter tube; 23. pipe passing; 24. a filter cartridge; 25. separating the net; 26. arranging pipes; 27. Rotating the closure plate; 41. a rotating shaft; 42. a helical blade; 91. a drive shaft; 92. polymerizing the blades; 93. the blade is toggled.

Detailed Description

In order to facilitate an understanding of the utility model, the utility model will now be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the utility model are shown, but which may be embodied in different forms and not limited to the embodiments described herein, but which are provided so as to provide a more thorough and complete disclosure of the utility model.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the knowledge of the terms used herein in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-4, the present invention provides a technical solution: the inside oil-water separator of bearing box of the turboset comprises a separation box 1 and a filter box 2, and is characterized in that the separation box 1 is installed at the lower end of the filter box 2, an opening is arranged in the middle of the joint, a liquid inlet pipe 21 is installed at one end of the filter box 2, a control valve 3 is installed on the liquid inlet pipe 21, a filter screen 5 is installed inside the filter box 2, the liquid inlet pipe 21 is located at the upper end of the filter screen 5, a driving motor 9 is installed at the center of the bottom of the separation box 1, a driving shaft 91 is installed at the output end of the driving motor 9, the driving shaft 91 penetrates into the separation box 1, two polymerization blades 92 symmetrically arranged and two stirring blades 93 symmetrically arranged are installed on the driving shaft 91, the two stirring blades 93 are located above the two polymerization blades 92, an oil discharge pipe 11 is arranged at one side of the separation box 1, the other side is provided with a drain pipe 12, one end of the inner side of the oil discharge pipe 11 is inserted between the toggle blade 93 and the polymerization blade 92, the drain pipe 12 is positioned at the lower end of the side of the separation box 1, the oil discharge pipe 11 and the drain pipe 12 are respectively provided with a first electric control valve 6 and a second electric control valve 8, one side of the separation box 1 is provided with a control unit 7, the first electric control valve 6 and the second electric control valve 8 are electrically connected with the control unit 7, firstly, oil water is injected into the filter box 2 from the liquid inlet pipe 21, solid impurities in the oil water can be removed through the filter screen 5 in the filter box 2, then the oil water enters the separation box 1, when a large amount of oil water is in the separation box 1, the driving motor 9 is started to enable the toggle blade 93 and the polymerization blade 92 on the driving shaft 91 to rotate, and different centrifugal forces are generated by oil-water density and high-speed rotation oil-water mixed liquid, thereby separating the oil from the water. Because the driving motor 9 can reach very high rotating speed, the centrifugal force which is up to hundreds of times of the gravity acceleration is generated, so the device can separate oil from water more thoroughly, the separation effect is increased, and finally, the switching frequency and the switching time in the first electric control valve 6 and the second electric control valve 8 are controlled, so the balance of the internal oil-water separation is controlled.

Please refer to fig. 1 and fig. 2 again, the upper end of the filter box 2 is obliquely provided with the filter tube 22, the upper end of the filter tube 22 is provided with the rotating motor 4, the output end of the rotating motor 4 is connected with the rotating shaft 41, the rotating shaft 41 is provided with the helical blade 42, the lower end of the filter tube 22 is connected with the through tube 23, the helical blade 42 is rotated by starting the rotating motor 4, so as to drive the impurities in the filter box 2 to rise, and finally the impurities are discharged through the through tube 23, so as to better solve the problem of the impurities remaining in the filter box 2, the lower end of the through tube 23 is connected with the filter box 24, the filter box 24 is internally provided with the partition net 25, the lower end of the filter box 24 is provided with the discharge tube 26, and the partition net 25 in the filter box 24 can further filter a small part of the oil and water brought into the filter box 24; the outside of the filter cassette 24 is provided with a rotating closure plate 27, by which the impurities can be removed more easily and conveniently.

Referring to fig. 3 again, the diameter of the drain pipe 12 is smaller than that of the drain pipe 11, and when the drain pipe 12 is small, the water in the separation tank 1 will be surplus with oil, so that the water can be better wrapped by the oil in the centrifugal separation, thereby achieving the balance.

Please refer to fig. 3 again, a water level detector 10 is installed inside the separation tank 1, the water level detector 10 is electrically connected to the control unit 7, and the water level inside the separation tank 1 can be detected by the water level detector 10, so as to control the opening frequency of the first electric control valve 6 and the second electric control valve 8; a fixing frame 13 is installed in the center of the upper end in the separation box 1, the upper end of the driving shaft 91 is rotatably connected with the fixing frame 13, the balance of blades on the driving shaft 91 can be kept through the fixing frame 13, and a more stable separation effect is achieved.

The specific operation mode of the utility model is as follows:

at first with profit from the feed liquor pipe 21 and pour into to rose box 2 into, can get rid of the solid impurity in the profit through filter screen 5 in the rose box 2, then make helical blade 42 rotate through starting rotating electrical machines 4, thereby the impurity in the drive rose box 2 rises, discharge to filter cartridge 24 through siphunculus 23 at last, later the profit gets into in the separator box 1, when having a large amount of profit in the separator box 1, start driving motor 9 and make stirring blade 93 and polymerization blade 92 on the drive shaft 91 rotate, utilize the difference of profit density, make the rotatory profit of high speed mix liquid produce different centrifugal force, thereby make oil and moisture separate. Because the driving motor 9 can reach very high rotating speed, the centrifugal force which is up to hundreds of times of the gravity acceleration is generated, so the device can separate oil from water more thoroughly, the separation effect is increased, and finally, the switching frequency and the switching time in the first electric control valve 6 and the second electric control valve 8 are controlled, so the balance of the internal oil-water separation is controlled.

The utility model is described above with reference to the accompanying drawings, it is obvious that the utility model is not limited to the above embodiments, and it is within the scope of the utility model to adopt the method concept and technical solution of the utility model to make such insubstantial modifications, or to directly apply the concept and technical solution of the utility model to other applications without any modification.

Claims (7)

1. Inside oil-water separator of bearing box of steam turbine unit, including separator box (1) and rose box (2), its characterized in that, the lower extreme at rose box (2) is installed in separator box (1), and is provided with the opening in the middle of the junction, feed liquor pipe (21) is installed to the one end of rose box (2), install control valve (3) on feed liquor pipe (21), the internally mounted of rose box (2) has filter screen (5), feed liquor pipe (21) are located the upper end of filter screen (5), the bottom center department of separator box (1) installs driving motor (9), drive shaft (91) is installed to the output of driving motor (9), drive shaft (91) run through to the inside of separator box (1), install polymerization blade (92) and two stirring blade (93) that the symmetry set up on drive shaft (91) of two symmetry settings, two toggle blade (93) are located the top of two polymerization blades (92), one side of separator box (1) is provided with oil drain pipe (11), and the opposite side is provided with drain pipe (12), oil drain pipe (11) inboard one end is inserted to between toggle blade (93) and polymerization blade (92), drain pipe (12) are located the side lower extreme of separator box (1), just install first automatically controlled valve (6) and second automatically controlled valve (8) on oil drain pipe (11) and drain pipe (12) respectively, control unit (7) are installed to one side of separator box (1), first automatically controlled valve (6) and second automatically controlled valve (8) all realize the electricity with control unit (7) and are connected.

2. The internal oil-water separation device of the bearing box of the steam turbine unit as claimed in claim 1, wherein the filter pipe (22) is obliquely installed at the upper end of the filter box (2), the rotating motor (4) is installed at the upper end of the filter pipe (22), the output end of the rotating motor (4) is connected with the rotating shaft (41), the rotating shaft (41) is provided with the helical blade (42), and the lower end of the filter pipe (22) is connected with the through pipe (23).

3. The internal oil-water separator of a bearing housing of a steam turbine set according to claim 2, wherein a filter box (24) is connected to the lower end of the through pipe (23), a separation net (25) is arranged inside the filter box (24), and a discharge pipe (26) is arranged at the lower end of the filter box (24).

4. The internal oil-water separator of a bearing housing of a turboset according to claim 3, characterized in that a rotary closing plate (27) is mounted on the outside of the filter cassette (24).

5. The bearing housing interior oil-water separating device of a steam turbine according to claim 1, characterized in that the diameter of the drain pipe (12) is smaller than the diameter of the oil drain pipe (11).

6. The internal oil-water separation device of a bearing housing of a steam turbine set according to claim 1, characterized in that a water level detector (10) is installed inside the separation housing (1), and the water level detector (10) is electrically connected with a control unit (7).

7. The internal oil-water separation device of a bearing box of a steam turbine set according to claim 1, characterized in that a fixing frame (13) is installed at the center of the upper end in the separation box (1), and the upper end of the driving shaft (91) is rotatably connected with the fixing frame (13).

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